Please, read through this post and submit your issue accordingly. Not everything will be relevant to your issue, but have a read as it gives an idea of the information you can provide to help me help you as quickly as possible without delays in having to request additional information

I just want it to get the last 3 tweets and follow the people liking and commenting.

As I posted above
user tweets (3)
notes

BE AWARE you are pulling RECENT tweets, if they are very recent, you may not get many people have liked / commented yet. So if this is a high tweet account, you are constantly pulling up the most recent 3 which could not have many likers / commenters at that time